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Finding the Fourth Proportional to 510,639.18, 766,060.26 and 173,589.33

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Solution

The fourth proportional to 510,639.18, 766,060.26 and 173,589.33 is: 260,418.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,639.18 : 766,060.26 = 173,589.33 : x
  2. Step 2: Convert to fraction form
    510,639.18/766,060.26 = 173,589.33/x
  3. Step 3: Cross multiply
    510,639.18x = 766,060.26 × 173,589.33
  4. Step 4: Simplify right side
    510,639.18x = 132,979,885,673.92
  5. Step 5: Solve for x
    x = 132,979,885,673.92/510,639.18
  6. Step 6: Final answer
    x = 260,418.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.